Her parents are allall areare bothoth are English teachers.

题目

Her parents are allall areare bothoth are English teachers.

答案

首先不能用all,因为all的适用范围是3者及以上,parents很显然是2者,所以一定要使用both
这个句子中用are both
即：Her parents are both English teachers.
也可以both提前置于句首：
Both of her parents are English teachers.